Added ability to automatically pull unfloader and build for unf debug (#462)

`make unf` added: build rom then pull the unfloader binary if needed, then load rom in debug mode
also, `make load` will pull unfloader as well!

Makefile

@@ -210,6 +210,12 @@ endif
 #   0 - does not
 UNF ?= 0
 $(eval $(call validate-option,UNF,0 1))
+
+# if `unf` is a target, make sure that UNF is set
+ifneq ($(filter unf,$(MAKECMDGOALS)),)
+	UNF = 1
+endif
+
 ifeq ($(UNF),1)
   DEFINES += UNF=1
   SRC_DIRS += src/usb
@@ -502,8 +508,13 @@ endif
 ENDIAN_BITWIDTH       := $(BUILD_DIR)/endian-and-bitwidth
 EMULATOR = mupen64plus
 EMU_FLAGS =
-LOADER = loader64
-LOADER_FLAGS = -vwf
+
+ifneq (,$(call find-command,wslview))
+    LOADER = ./$(TOOLS_DIR)/UNFLoader.exe
+else
+    LOADER = ./$(TOOLS_DIR)/UNFLoader
+endif
+
 SHA1SUM = sha1sum
 PRINT = printf
 
@@ -553,8 +564,18 @@ test-pj64: $(ROM)
 	wine ~/Desktop/new64/Project64.exe $<
 # someone2639
 
-load: $(ROM)
-	$(LOADER) $(LOADER_FLAGS) $<
+# download and extract most recent unfloader build if needed
+$(LOADER):
+ifeq (,$(wildcard $(LOADER)))
+	@$(PRINT) "Downloading latest UNFLoader...$(NO_COL)\n"
+	$(PYTHON) $(TOOLS_DIR)/get_latest_unfloader.py $(TOOLS_DIR)
+endif
+
+load: $(ROM) $(LOADER)
+	$(LOADER) -r $<
+
+unf: $(ROM) $(LOADER)
+	$(LOADER) -d -r $<
 
 libultra: $(BUILD_DIR)/libultra.a
 

tools/Makefile

@@ -72,6 +72,7 @@ all: all-except-recomp
 
 clean:
 	$(RM) $(ALL_PROGRAMS)
+	$(RM) UNFLoader*
 	$(MAKE) -C audiofile clean
 
 define COMPILE

tools/get_latest_unfloader.py

@@ -0,0 +1,59 @@
+import platform
+import os
+import zipfile
+import stat
+import sys
+
+from requests import request
+
+
+def get_latest_build_artifacts_url():
+    res = request('GET', 'https://dev.azure.com/buu342/6fa21e4f-4c4b-425c-891d-28537ab457a9/_apis/build/builds?$top=1&api-version=4.1')
+    body = res.json()
+    return os.path.join(body['value'][0]['url'], 'artifacts')
+
+def main():
+    destpath = sys.argv[1] if len(sys.argv) > 1 else './'
+    is_wsl = 'microsoft-standard' in str(platform.uname()).lower()
+    unf_fn = 'UNFLoader.exe' if is_wsl else 'UNFLoader'
+    artifact_url = get_latest_build_artifacts_url()
+
+    # get all artifacts from most recent build
+    artifacts_res = request('GET', f'{artifact_url}?api-version=4.1')
+    artifacts = artifacts_res.json()['value']
+
+    # get artifact url for current platform
+    platform_artifact_url = None
+    platform_name = 'windows' if is_wsl else 'linux'
+    for artifact in artifacts:
+        a_name = artifact['name']
+        if platform_name in a_name:
+            platform_artifact_url = artifact['resource']['downloadUrl']
+
+    # download unf zipfile
+    artifact_res = request('GET', platform_artifact_url)
+    with open('UNFLoader.zip', 'wb') as unf_fp:
+        unf_fp.write(artifact_res.content)
+
+    # only extract the specific file that we need
+    unfpath = None
+    with zipfile.ZipFile('UNFLoader.zip', 'r') as zip_ref:
+        for zipinfo in zip_ref.infolist():
+            if not zipinfo.is_dir():
+                unfpath = zip_ref.extract(zipinfo)
+
+    unf_bin_path = os.path.join(destpath, unf_fn)
+    # file gets extracted to ./unfloader-{platform}/UNFLoader[.exe],
+    # so move binary to ./UNFLoader[.exe]
+    os.rename(unfpath, unf_bin_path)
+    # remove ./unfloader-{platform}/ directory
+    os.rmdir(unfpath.rstrip(unf_fn))
+    # remove UNFLoader.zip
+    os.remove('UNFLoader.zip')
+    
+    # now need to add executable file permissions to unfloader 
+    st = os.stat(unf_bin_path)
+    os.chmod(unf_bin_path, st.st_mode | stat.S_IEXEC)
+
+if __name__ == '__main__':
+    main()